Hi all,
I'm trying to add a list of validators to a subclass of
rest_framework.fields.Field.
I would prefer to add the validators to the field declaration, rather than
every place it is used.
Ideally, I would like to be able to declare the Field similarly a
Serializer, e.g:
class MyField(rest_framework.fields.Field):
class Meta:
validators = (
my_validation_function,
)
However, it looks like the Meta class is only used in subclasses of
Serializer, and not in subclasses of Field.
Adding the validators during __init__ is pretty ugly:
class MyField(rest_framework.fields.Field):
def __init__(self, read_only=False, write_only=False, required=None,
default=empty, initial=empty, source=None,
label=None, help_text=None, style=None,
error_messages=None, validators=None, **kwargs):
if validators is None:
validators = []
else:
validators = list(validators)
default_validators = (
my_validator,
)
validators.extend(default_validators)
super().__init__(read_only, write_only, required, default, initial,
source, label, help_text, style,
error_messages, validators, **kwargs)
Is there a better way to add a list of validators to a field inside the
declaration of the field?
Thanks in advance for any help,
Phil Woods
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